.\" Generated from openpam_log.c by gendoc.pl
.Dd May 31, 2025
.Dt OPENPAM_LOG 3
.Os
.Sh NAME
.Nm openpam_log
.Nd log a message through syslog
.Sh SYNOPSIS
.In sys/types.h
.In security/pam_appl.h
.In security/openpam.h
.Ft "void"
.Fn openpam_log "int level" "const char *fmt" "..."
.Sh DESCRIPTION
The
.Fn openpam_log
function logs messages using
.Xr syslog 3 .
It is primarily intended for internal use by the library and modules.
.Pp
The
.Fa level
argument indicates the importance of the message.
The following levels are defined:
.Bl -tag -width 18n
.It Dv PAM_LOG_LIBDEBUG
Debugging messages.
For internal use only.
.It Dv PAM_LOG_DEBUG
Debugging messages.
These messages are normally not logged unless the global
integer variable
.Va openpam_debug
is set to a non-zero
value, in which case they are logged with a
.Xr syslog 3
priority of
.Dv LOG_DEBUG .
.It Dv PAM_LOG_VERBOSE
Information about the progress of the authentication
process, or other non-essential messages.
These messages are logged with a
.Xr syslog 3
priority of
.Dv LOG_INFO .
.It Dv PAM_LOG_NOTICE
Messages relating to non-fatal errors.
These messages are logged with a
.Xr syslog 3
priority of
.Dv LOG_NOTICE .
.It Dv PAM_LOG_ERROR
Messages relating to serious errors.
These messages are logged with a
.Xr syslog 3
priority of
.Dv LOG_ERR .
.El
.Pp
The remaining arguments are a
.Xr printf 3
format string and the
corresponding arguments.
.Pp
The
.Fn openpam_log
function does not modify the value of
.Va errno .
.Sh SEE ALSO
.Xr pam 3 ,
.Xr printf 3 ,
.Xr syslog 3
.Sh STANDARDS
The
.Fn openpam_log
function is an OpenPAM extension.
.Sh AUTHORS
The
.Fn openpam_log
function and this manual page were
developed for the
.Fx
Project by ThinkSec AS and Network Associates Laboratories, the
Security Research Division of Network Associates, Inc.\& under
DARPA/SPAWAR contract N66001-01-C-8035
.Pq Dq CBOSS ,
as part of the DARPA CHATS research program.
.Pp
The OpenPAM library is maintained by
.An Dag-Erling Sm\(/orgrav Aq Mt des@des.dev .
